(-)-1-<(1S,3R,4S)-3-hydroxy-4-(hydroxymethyl)cyclopentyl>-5-<(E)-2-carbomethoxyvinyl>-1H,3H-pyrimidine-2,4-dione

(-)-3-ethoxy-N-cyclopentyl>carbamoyl>propenamide

Benzoic acid (R)-4-benzyloxymethyl-cyclopent-1-enylmethyl ester

(-)-<(1S,2R,4S)-2-acetoxy-4-<(benzyloxy)methyl>cyclopentyl>methyl benzoate

(+)-(1S,2S,4S)-2-<(benzoyloxy)methyl>-4-<(benzyloxy)methyl>cyclopentyl methanesulfonate